Machine for cutting and winding materials



Feb. 12, 1946. v .1, J DELSHON 23%,85Q

MACHINE FOR CUTTING AND WINDING MATERIALS Filed Sept. 50, 1342 4Sheets-Sheet l Iv 3 INVENTOR. F'lgal. My Jag/W y W206i? WV ATTORNEY;

Feb. 12, 1946.

o. l. JUDELSHQN 2,394,859

MACHINE FOR CUTTING AND. WINDING MATERIALS Filed Sept; so, 1942 4Sheets-Sheet 2 FIG. 2.. (m v Q MK J E BY 7 mock;

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' r 1 I VAT TORNEYS o. 1. JUDELSHON MACHINE FOR CUTTING AND WINDINGMATERIALS Fild Sept. 30, 1942 4 Sheets-She er: 4

ATTORNEY Patented Feb. 12, 1946 OFFICE MACHINE FOR CUTTING AND WINDINGMATERIAL Oscar I. J udelshon, New York, N. Y.

7 Application September 30, 1942, Serial No. 460,200

9 Claims.

My invention relates to a new andimproved machine for cutting andwinding materials, such v improve the type of cutting machine in whichthe material is passed between a pressure roll and one or more circularknives; to prevent the stretching of the material in the machine,especially if the material is bias-cut woven fabric; to wind the outmaterial uniformly on a takeup reel or reels in spiral form; to operatethe pressure roll and the circular knife or knives at the same linearcircumferential speed; to provide a take-up feed roll towards which thetakeup reel is urged by gravity; to operate the pressure roll and eachassociated circular knife at greater linear circumferential speedthanthe take-up feed roll; to wind no material on'the take-up feed rollso'that its linear peripheral or circumferential speed remains constant;to cut the material by a shearing action, as distinguished from apressure action; and to prevent excessive drag on the material which isfed through the machine.

Numerous additional objects of my invention will be stated in theannexed description and drawings, which illustrate a preferredembodiment thereof. 1

Fig. 1 is a side elevation of the improved machine.

Fig. 2 is a section on the line 2-2 of Fig. 1.

Fig. 3 is a top plan view. I

Fig. 4 is a detail perspective view of certain essential parts.

Fig. 5 is a detail view.-

The material which is to be out, which may be cloth or any othermaterial, is wound spirally in the form of a magazine roll C, on amagazine reel or bobbin I. which rest turnably upon opposed pairs ofanti-- friction rolls 88, which are turnably connected to rigid andstationary arms 89, which are fixed to the frame F of the machine.

The material is led off said spiral magazine roll C, in the form of afiat web W. Said web W is led successively over cylindricalguide-members 5, 6, I, 8, and 9.

The spaced guides 5 and Bare connectedin I in unison, relative to guides5 and 8. The positions of guides 6 and 1 are adjusted relative to guides5 and 8, in order to regulate the tension on the web W as it passes oversaid guides. The ratchet wheel 99 is held releasably in its adjustedposition, by, pawl I00 which is pivoted to one of the arms 98 at llll.These guides 5, B, I and 8 may be rotatable or non-rotatable about theirrespective longitudinal axes. They are preferably non-rotatable. Guide 9is connected in fixed position to the frame F. Said guide 9 is alsopreferably non-rotatable about its longitudinal axis, although it may berotatable.

After the guide 9, the web W is led between the pressure roll Ill andthe circular cutters or knives I2 and M. In this embodiment, two knivesare used, in order to trim the edgesv of the web, by cutting off edgestrips 18 and I9. I can use any number of such knives, between thelongitudinal edges of the web W. 7

Pressure or backing roll 10 is fixed to a shaft H, whose ends areturnably supported in bearings of the frame F. This pressure roll ln'hasa very" smooth non-friction surface.

The knives l2 and [4 are respectively turn-s ably connected torespective bars 25, which pass through respective heads 26, which haveU- shaped cross-sections; Said heads 26 are clamped adjustably to shaft20, in order to make it possible to adjust the lateral distance betweensaid knives l2 and I4, and thus to regulate the widthsof the strips l8and [9 which are cut Said reel I has reduced ends,

respective fixed positions to rigid supporting arms 98 which are fixedto the frame F. The guides 6 and 1 are connected to an arm 95, which isfixed to a shaft 91, which is connected turnably to one of said arms 98.Ratchet wheel 99 is fixed to shaft, 91. Said ratchet wheel 99 can thusbe turned, in order to adjust'guides 6 and off adjacent the longitudinaledges of web W. The ends of shaft 20 are turnable in bearings which areprovided in the frame F. Bars 25 and the abutting inner walls of heads26 are shaped so that said bars 25 turn in unison with said heads 26,relative to the axis of rotation of shaft 20. Rods 25 may be fixed toheads 26, after said parts have been adjusted relative to each other, sothat said rods 25 cannot shift relative to said heads 26 while themachine is running, or rods '25 may be longitudinally slidable relativeto heads 26, while the machine is running. The bars 25 and the heads 25are shaped so that the only movement between said heads 26 and said bars25, is a longitudinal movement of said bars 25 in the direction of theirparallel longitudinal axes. The pressure roll [0 positively turns theknives l2 and I4 by friction, without any relative slip, or with anydesired relative slip.

A plate 21 is fixed to the outer end of each bar 25: The plates 21 maybe rigid or resilient. An eye-bolt 28 is fixed to each plate 21. Theupper end of a tension spring 29 is fixed to each eye-bolt 28. The lowerend of each said tension spring 29 is fixed to a lower eye-bolt 39. Saidlower eye-bolts 39 are fixed to the respective collars or heads 3| of arod 32, and said heads 3I are fixed by rigid cross-rods to the collarsor heads 33 of a rod 34, Whose ends are supported in the frame F. Saidheads 33 are turnable relative to rod 34, or they may be fixed to rod34, in which case the rod 94 is turnable about its longitudinal axis. Itis preferred to have the heads-33' fixed to rod 34 and to have rod 34turnable about its longitudinal axis. A bar 34b is fixed to one of saidheads or collars 33. A pin 35 can be passed through a hole in the upperend of said rigid bar 34b, and through a selected hole 35 of astationary perforated member 3?, which is fixed to the frame F of themachine. It is thus possible to regulate the tension of springs 29, andhence the pressure of knives I2 and H3 against pressure roll l9. Saidpressure may be sulficient to cause roll I9 to drive the knives I2 andI4 frictionally, in unison withroll l9, and without any relative slip.By turning bar 342; clockwise from the position of Fig. 4, such tensionof springs 29 and such pressure of knives I2 and I4 against roll I areincreased. By turning said bar 34b counterclockwise, namely, in thedirection of arrow 34a, the tension of springs 39- is decreased. A stopbar 38 is located Within each helical tension spring 29, in order tolimit the minimum distance between eye-bolts 39 and 28 and the minimumtension of springs 29.

After the cutting operation, the web W is led around a part of theperiphery of a turnable knurled take-up feed roll I5, whose shaft-ends Iare turnably supporting in bearings of the frame F of the machine.

The cloth is then wound-up in spiral form on the hollow take-up reel Ilwhich is releasably fixed t0 the shaft Ila.

The machine has a motor 39, whose shaft is connected by belt 4| topulley 42, which is fixed to shaft 43, which passes through the turnablesleeve 46. The usual grooved shift-collar 44, which has the usual forkedhand-operated shif er 41, is keyed by key 43a to a groove of shaft 43.Said grooved collar 44 is slidable on shaft 43, in the usual manner.Collar 45 is fixed to sleeve 46. The collars 44 and 45 respectively havethe usual'clutch tooth and clutch recess, so that shaft 43 can becoupled to or uncoupled from sleeve 46, The usual friction clutch can beused instead of the toothed clutch disclosed herein.

Sprocket 48, which is fixed to sleeve 46, is connected by chain 49 tosprocket 59, which is rotated on stud shaft 5|. Said sprocket 59 isfixed to sprocket 52 and to gear 70, so that said elements 59, 52 and 19turn in unison on stud shaft 5!.

Gear 19 meshes with the larger gear ll which is fixed to shaft II, so asto positively drive the backing or pressure roll I9.

Sprockets 15, which is fixed t0 shaft I i, is connected by chain 76 tosprocket ll, which is fixed to sprocket l9. Sprockets ll and 19 aremounted on and they can turn freely relative to stud shaft 18. Sprocketl9 is connected by chain 8i to sprocket 80, in order to drive shaft 4 inunison with the knurled feed rolls 3, in order to positively turn themagazine roll of material C at its periphery by the frictional drive ofsaid feed rolls 3, thus preventing undesirable tension. Shaft 4 ismounted in bearings of arms 82, whose ends 82a are. turnably mounted onsuitable aligned pivot members. One of these pivot members is the studshaft 18, on which the respective end 82a can turn freely. The weight ofsaid arms 82 and of the parts mounted thereon is sufficient to providethe frictional drive between the periphery of the feed rolls 3 and theroll of material C.

Sprocket l2, which is fixed to shaft II, drives the larger sprocket M bymeans of chain 15. Said sprocket l4 is fixed to shaft I6 of the take-upfeed roll I5. As an example, and without limiting the invention thereto,the diameter of pressure roll I9 may be 4.25 inches, and the diameter oftake-up feed roll I5 may be 4.00 inches, and the pitch diameter ofsprocket 14 is approximately 106% of the pitch diameter of sprocket l2.Hence the linear peripheral velocity of roll I5 is less than that ofroll I9. Roll I5 has a smaller angular velocity than roll I9.

As previously stated, sprocket 52 is fixed to sprocket 59, so thatsprockets 52 and 59 turn in unison on stud shaft 5|. Sprocket 52 isconnected by chain 54 to sprocket 55, which turns freely on stud shaft53. Sprocket 55, which is fixed to sprocket 55, is connected by chain51a to sprocket 57, whose hub 51!) is fixed to friction disc 95. Saidhub 51b and said driving friction disc 95 can turn freely relatively toshaft Ila, when driven friction disc 93 is uncoupled from friction disc95. Friction disc 93 has hub 92. Hub 92 has key-pin 94 which is slidablein a longitudinal recess of shaft Ila, so that friction disc 93 andshaft Ila turn in unison. Collar is fixed to shaft Ila. Compressionspring 9| biases driven friction disc 93 to coupling position relativeto driving friction disc 95.

The shaft Ila has bearings in two arms 58, which are pivotally mountedon stud shaft 53.

Each of said arms 58 is pivotally connected at 59 to a link 59, which ispivotally connected at El to a lever 52, which is pivoted at 63 to frameF. Each lever 62 has the adjustable counter weight 56, and additionalcounterweights 66 can be supported-on respective heads 61 of respectiverods 65, whose respective upper'ends are pivotally connected to therespective levers 62. Each arm 58 is thus provided with a link 69 and alever 62 and the associated parts which are shown in Fig. 1.

The operation of the machine is as follows:

Before starting the machine, the operator pulls the end of the web W offmagazine roll 0. The end of the web is led around parts of the guides 5,6, l, 9 and 9, and between the pressure roll I9 and the circular knivesI2 and Hi. To facilitate the insertion of the web between pressure rollI9 and said knives, the bar 34- can be then adjusted so that springs 29have little or no tension. Said knives can be moved out of contact withpressure roll H3, in order to facilitate the insertion of the webbetween said knives and said pressure roll I0. The web is then ledaround a part of the take-up roll I5, and the end of the web isconnected to the take-up reel IT on. shaft Ila. Said reel ll can beremoved from shaft Ila by a relative sliding movement in the well-knownmanner. Reel I? is releasably fixed to shaft lla.

The counterweights 66 and 54 turn each lever 52 so as to push each link69 upwardly, thus biasing the shaft Ila away from the take-up roll I5,by urging the arms 58 to turn upwardly around the axis of stud shaft 53.This biasing is controlled by the number of weights 56 which areutilized. As the material is accumulated upon the take-up reel Il, morecounterweights 5.5

can be added. 7

The motor 39 is then started, and the clutch members 44 and 45 arecoupled, so that shaft 43, which is driven by pulley 42, will drivesleeve 46 and its sprocket 48. Chain 49 will rotate sprocket '50 on studshaft 5!, thus driving gear ill and sprocket 52;

Gear '10 will turn the larger gear, 'H, so that the angular velocity ofshaft II and the angular velocity of its backing of pressure roll IDwill be less than the angular velocity of shaft 43.

Sprocket 12 will drive sprocket 14, thus turning the take-up feed rollI5 at slightly lower linear peripheral velocitythan the linearperipheral velocity of pressure roll l andthe linear peripheral velocityof the knives. This difference in linear peripheral velocity betweenrolls l and (0 depends on thekind of material'which is being cut. Saiddifference may be very slight. Said difference is regulated by selectingthe difference in pitch diameter of sprockets l2 and, or by selectingrolls I5 and IU of suitably difierent outer diameters.

Sprocket 15 will drive sprocket 1?, thus driving sprocket 19 andsprocket 80 and shaft 4. The knurled friction rolls 3 will thuspositively drive the magazine roll C at its periphery, so that said rollis driven in order to unwind the material therefrom. This positive driveof roll C is selected to prevent excessive tension on the web W of saidmaterial, anterior said r011 C. The drawings are substantially to scaleand reference is made thereto for further details. As the material isunwound from roll C, the arms 82 will turn downwardly by gravity aroundthe axis'of the stationary stud-shaft 18, so that the rolls 3 willalways maintain their friction drive. This positive frictiondrive issuflicient at all times to prevent excessive tension upon andundesirable stretching of the web W.

The speed at which the material is unwound from the magazine roll C, andat which the material is fed through the machine,.is fixed wholly by thelinear peripheral speed of the take-up feed roll Hi. This feeding speedis a constant speed, because no material is ever wound upon said take-upfeed roll 15. The

weight of arms 58 and of shaft Fla and of.

take-up reel I! is always, sufficient to producea frictional drivebetween take-up feed roll l5 and the material Ca which is wound uponsaid reel [1. One of the features of my invention is that the drive offeed-roll I5 omits a slip-friction drive, so that said feed-roll I5 isalways driven in fixed relation to the cutting means. Hence the tensionon the fabric is maintained uniform, between the roll of wound-upmaterial and the. cutting means.

Since the pressure roll [0 always has a greater linear peripheral speedthan the linear peripheral speed of the take-up feed roll I5, saidpressure roll l0 always has a greater linear peripheral speed than thelinear speed of the web W. Hence the pressure roll I0, which has a verysmooth surface, will always slip slightly relative to the web, so thatthe cutting action is always a shearing action, instead of being a merepressure action. The circular knives l2 and [4 are always frictionallydriven by the pressure roll Ill, so that said knives have agreaterperipheral linear speed than the speed of the web, thus producing thedesired shearing cutting action. As

shownin Fig. 4, the'cutting portions of the knives.

move in the same direction as the web. The guides 5, 6, I, 8 provide anadjustable drag upon the movement of the web, anterior the cutting zone,so that the web Wis under regulated tension between guides and thetake-up feed roll l5, and hence at the knives. I v

' As the trimmed material is accumulated upon the take-up reel l1, theshaft Ha will'rise. Fig. 1 shows one position of shaft Ila. in fulllines, and it shows a'higher position of said shaft Ha in broken lines.

The trimmed-off edge strips l8 and I9 are led out of the machine bypairs of feed rolls 2| and 23 which are fixed to shafts 22 and 24.

The shaft 22 is turnably mounted in arms 85, which are fixed to frame Fby bolts 86. Shaft 22 has a pulley 83, which is driven by belt 84, partof which is located in a groove of the pressure roll [0, which thereforeacts as a drive pulley. Shaft 24 is mounted in arms 88, which arepivoted at 81 to frame F, so that a friction feed is provided betweenthe feed rolls 2| and 23.

The slip of the friction clutch 93-95 is sufficient to keep the materialCa on the reel ll under suitable tension, so as to wind up the materialin the form of a uniformly tight roll. The slip of the friction drivecan be regulated by selecting a suitable control spring 9!. The forcewith which the spring 9| produces the slip friction drive can be variedfor different materials. The object is to produce a tight wound-up rollwithout objectionably stretching the cloth or other material.

The knurled rolls 3 and the take-up roll l5 may have equal outerdiameters.

The slip-friction drive 95-93 always urges the periphery of the take-upreel I! to turn at greater linear peripheral velocity than the linearperipheral'velocity of the take-up roll [5, so that the material iswound up under tension to produce the roll Ca.

If additional knives are located between the knives l2 and I4, the webis cut into strips of any desired Width.

I have described a preferred embodiment of the invention, but it isclear that numerouschanges and omissions can be made without departingfrom its spirit.

For example, while I have disclosed a complete machine, the inventionincludes numerous valuable sub-combinations, which can be usedindependently of said complete machine, or in other machines of manydifferent types.

The member I5 is generically described as feeding means for feeding theweb through the machine at constant predetermined speed. When I refer tocircular cutting means, I include a single circular knife or any numberof circular knives. Likewise, when I specify driving means in a claim orclaims, I include the use of a single master motor or the use of aplurality of motors.

I'claim:

, 1. In a cutting machine for cutting a web, feeding means adapted tomove said web through the machine at constant predetermined speed, apressure roll and circular cutting means located anterior said feedingmeans, said circular cutting means being frictionally driven by saidpressure roll, biasing means for biasing said circular cutting meanstowards said pressure roll in order to cut the web between said pressureroll and v said circular cutting means, driving means adapted to operatesaid feeding means at constant predetermined speed and to revolve saidpressure roll at a linear peripheral speed which exceeds saidpredetermined speed.

2. In a cutting machine for cutting a web, feeding means adapted to movesaid web through the machine at constant predetermined speed, a

pressure roll and circular cutting means located anterior said feedingmeans; said'circular cutting means being frictionally driven by saidpressure roll, biasing means for biasing said circular cutting meanstowards said pressure rollin order to cut the web between said pressureroll and said circular cutting means, driving means adapted to operatesaid feeding means at constant predetermined speed and to revolve saidpressure roll at a linear peripheral speed which exceeds saidpredetermined speed, and means for subjecting the web to adrag anteriorsaid pressure roll.v

3. In a cutting machine, a pressure roll, a disc knife, a holding rod towhich the disc knife is turnably connected, a turnable shaft, connectingmeans connecting said holding rod to said shaft intermediate the ends ofsaid holding rod so that said holding rod is turnable around the axis ofsaid shaft, a second shaft, an adjustment rod laterally spaced from saidsecond shaft and fixed to said second shaft, a tension spring whose endsare respectively connected to said holding rod and to said adjustmentrod, means for turning said second shaft to adjusted position and forholding saidsecond shaft in its adjusted position.

4. In a cutting machine, circular cutting means, feeding means adaptedtofeed a web of material through said machine. at constant speed, apressure roll, said circular cutting means being frictionally driven bysaid pressure 7 roll, drive means for driving said pressure roll andsaid circular cutting means at a peripheral speed which is greater thansaid constant speed.

5. In a cutting machine, feeding means adapted to feed a web of materialthrough said machine at constant speed, a pressure roll, circularcutting means frictionally driven by said pressure roll, drive means fordriving said pressure roll and said circular cutting means at aperipheral speed which is greater than said constant speed, and meanslocated anterior said circular cutting means andadapted to subject theweb to tension anterior said circular cutting means.

6. A cutting and winding machine comprising a support for turnablysupporting a magazine reel, a pressure roll, circular cutting meansassociated with said pressure roll, biasing means which bias saidcircular cutting means towards said pressure roll, tension-producingmeans which produces a tension on the web anterior said pressure roll,said tension-producing means being located intermediate said pressureroll and said magazine reel, a take-up feedroll, said pressure roll andthe associated circular cutting means being located intermediate saidtensionproducing means and said take-up feed roll, a take-up reel whichis movable towards and away from said take-up feed roll, said takeupreel being biased towards said take-up feed roll, so that the materialwhich is wound upon said take-up reel contacts with the periphery ofsaid feed roll under said biasing force, supplemental feed rolls whichare biased towards said magazine reel so that said. supple mental feedrolls contact with the material which is wound upon said magazine reeL,

means for rotating the take-up reel, said means for rotating the.take-up reel including slip-friction means, driving means for drivingsaid take-up feed roll at constant linear peripheral speed and fordriving said pressure roll and the associated circular cutting means atgreater linear peripheral speed and for revolving said supplemental feedrolls and for actuating said means for turning the take-up reel.

7. In a cutting machine for cutting a web, feedin means for feeding theweb through the machine at constant predetermined speed, tensioningmeans for tensioning the web, said tensioning means bein locatedanterior said feeding means, circular cutting means located intermediatesaid feeding means and said tensioning means, non-slip drive means whichoperate said feed-means and which rotate said circular cutting means,said drive means turning said circular cutting means at greaterperipheral cutting speed than and in fixed non-slip proportion to saidconstant predetermined speed of the web, said feeding means being theonly means for determining the speed of the web through the machine. 7

8. In a cutting machine for cutting a web, a, take-up reel on which thecut web is wound up in the form of a spiral roll, a friction feed rolllocated to contact with the periphery of said spiral roll, said take-upreel beingmounted movably relative to said friction feed roll so thatthe spacing between said take-up reel and said friction feed roll isincreased as the diameter of said spiral roll is increased, saidfriction feed roll being the only means for determining the speed of theweb through the machine, tensioning means for t-ensioningthe web, saidtensioning means being located anterior said take-up reel and said feedroll, circular cutting means located intermediate said feed roll andsaid tensioning means, non-slip drive means which rotate said feed rollat constant speed and which also rotate said ciruclar cutting means sothat the peripheral speed of said cutting means isgreater than and infixed non-slip proportion to the peripheral speed of said feed roll.

9. In a cutting machine for cutting a web' a take-up reel on which thecut web is wound up in the form of a spiral roll, a friction feed r011located to contact with the periphery of said spiral roll, said take-upreel being mounted movably relative to said friction feed roll so thatthe spacing between said take-up, reel and said friction feed roll isincreased as the diameter of said spiral roll is increased, saidfriction feed roll being the only means for determining the speed of theweb through the machine, tensioning means for tensioning the web, saidtensioning means being located anterior said take-up reel and said feedroll, circular cutting means located intermediate said feedrolland saidtensioning means, non-slip, drive means which rotate said feed roll atconstant speed and which also rotate 7 said circular cutting meanssothat the peripheral speed of said cutting means is greater than and infixed non-slip proportion to the peripheral speed of said feed roll,said machine also having slip-friction drive means for rotating saidtakeup reel in order to wind said spiral roll under tension on saidtake-up reel.

OSCAR I. JUDELSHON.

